const crypto = require("crypto")

const md5 = crypto.createHash("md5")

md5.update("Hello Node.js")

console.log("11111")
console.log(md5.copy().digest("hex"))

const md5New = crypto.createHmac("md5", "secret key")
md5New.update("111111")
console.log(md5New.digest("hex"))

const sha256 = crypto.createHash("sha256")
sha256.update("Hello Node.js")
console.log(sha256.digest("hex"))